Potterton Netaheat 16-22 repeatedly cuts in and out. 3-5 secs.?

I have just moved into my house and have inherited a Potterton Lynx. It completes the cycle igniting the pilot and then the main burner no problem, but then it clicks and cuts out for a split second, then reignites. It continues to click on and off every 3 to 5 seconds. It is also intermittent. I'd be grateful if anyone can tell me what could be causing this?

Dave Turnbull, June 2007

It cannot be an air pressure switch if its the Lynx I as it does not have one!

Its most likely to be as a result of a lack of flame detection !

That would be PCB, electrode or the flame lifting off the burner. That should really be dealt with by CORGI.

Tony

Tony Glazier, August 2007

is your boiler the lynx 1 or 2 model if it has 2 vertical rows of l.e.d 's on the front panel it is a lynx 1 .on this model the air flow sensor is not available as a spare so if its that get anew boiler.however sounds like its the full sequence board not making good contact on the distribution board in the control panel

pete, June 2007

sounds like air pressure switch dave.

derek, June 2007